    .select_short{
      font-size: 12px;
      width:100%;
      position:absolute;
      z-index:2;
    }
    .select_short span.cur_con{
      padding-left: 8px;
      display: block;
      position: relative;
      cursor:pointer;
    }
    .select_short span.fold:after{
      content: "";
      display: block;
      position: absolute;
      border-top: 10px solid #cccccc;
      border-left: 5px solid transparent;
      border-right: 5px solid transparent;
      top: 36%;
      right: 10px;
    }
    .select_short span.unfold:after{
      content: "";
      display: block;
      position: absolute;
      border-bottom: 10px solid #cccccc;
      border-left: 5px solid transparent;
      border-right: 5px solid transparent;
      top: 36%;
      right: 10px;
    }
    .select_short ul.opt{
      list-style-type: none;
      margin: 0;
      padding:0;
      position:relative;
      left: -1px;
      z-index:2;
      top:1px;
    }
    .select_short ul.opt li{
      border: 1px solid #CCCCCC;
      border-top: none;
      padding-left: 8px;
      background-color:white;
      cursor:pointer;
    }
    .select_short ul.opt li:hover{
      background-color: #dddddd;
    }